Nous proposons un grand nombre d'applications industrielles variées de nouveaux systèmes d'imagerie THz. Tout d'abord, nous avons construit un tomographe THz de très haute résolution, en employant un laser à fibre délivrant des impulsions optiques ultra-brèves qui éclairent un cristal non linéaire pour générer les signaux THz. Nous avons étendu la tomographie à l'inspection tri-dimensionnelle, par exemple de la répartition de la suie dans des filtres céramiques pour l'automobile, réalisée ici avec des ondes millimétriques. Enfin, nous décrirons la mesure de l'épaisseur de films très minces placées sur des grilles métalliques. Toutes ces techniques sont directement applicables au contrôle non destructif pour l'industrie.
We have suggested a wide range of real-life applications using novel terahertz imaging techniques. A high-resolution terahertz tomography has been demonstrated by ultra short terahertz pulses using optical fiber and a nonlinear organic crystal. We also describe a nondestructive inspection system that can monitor the soot distribution in a ceramic filter using millimeter-to-terahertz wave computed tomography. Further, we report on the thickness measurement of very thin films using high-sensitivity metal mesh filter. These techniques are directly applicable to the nondestructive testing in industries.
Mot clés : Imagerie térahertz, Tomographe THz, Capteur de grille métallique, Analyse industrielle non destructive
Kodo Kawase 1, 2 ; Takayuki Shibuya 1, 2 ; Shin'ichiro Hayashi 2 ; Koji Suizu 1
@article{CRPHYS_2010__11_7-8_510_0, author = {Kodo Kawase and Takayuki Shibuya and Shin'ichiro Hayashi and Koji Suizu}, title = {THz imaging techniques for nondestructive inspections}, journal = {Comptes Rendus. Physique}, pages = {510--518}, publisher = {Elsevier}, volume = {11}, number = {7-8}, year = {2010}, doi = {10.1016/j.crhy.2010.04.003}, language = {en}, }
TY - JOUR AU - Kodo Kawase AU - Takayuki Shibuya AU - Shin'ichiro Hayashi AU - Koji Suizu TI - THz imaging techniques for nondestructive inspections JO - Comptes Rendus. Physique PY - 2010 SP - 510 EP - 518 VL - 11 IS - 7-8 PB - Elsevier DO - 10.1016/j.crhy.2010.04.003 LA - en ID - CRPHYS_2010__11_7-8_510_0 ER -
Kodo Kawase; Takayuki Shibuya; Shin'ichiro Hayashi; Koji Suizu. THz imaging techniques for nondestructive inspections. Comptes Rendus. Physique, Volume 11 (2010) no. 7-8, pp. 510-518. doi : 10.1016/j.crhy.2010.04.003. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2010.04.003/
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